68864319 has 6 divisors (see below), whose sum is σ = 99470696. Its totient is φ = 45909540.

The previous prime is 68864317. The next prime is 68864321. The reversal of 68864319 is 91346886.

It is an interprime number because it is at equal distance from previous prime (68864317) and next prime (68864321).

It is not a de Polignac number, because 68864319 - 2¹ = 68864317 is a prime.

It is a super-2 number, since 2×68864319² = 9484588862667522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68864311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3825787 + ... + 3825804.

Almost surely, 2^68864319 is an apocalyptic number.

68864319 is a deficient number, since it is larger than the sum of its proper divisors (30606377).

68864319 is a wasteful number, since it uses less digits than its factorization.

68864319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7651597 (or 7651594 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 68864319 is about 8298.4528076021. The cubic root of 68864319 is about 409.8875737748.

The spelling of 68864319 in words is "sixty-eight million, eight hundred sixty-four thousand, three hundred nineteen".